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CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=INNODB; INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6); SET BINLOG_FORMAT=STATEMENT; BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; ERROR HY000: Transaction isolation level 'READ-COMMITTED' is not safe for 'STATEMENT' binlog mode UPDATE t1 SET b = a*a WHERE a > 1; COMMIT; BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; UPDATE t1 SET b = a*a WHERE a > 1; COMMIT; BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE; UPDATE t1 SET b = a*a WHERE a > 1; COMMIT; SET BINLOG_FORMAT=MIXED; BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; ERROR HY000: Transaction isolation level 'READ-COMMITTED' is not safe for 'MIXED' binlog mode UPDATE t1 SET b = a*a*a WHERE a > 2; COMMIT; SET BINLOG_FORMAT=ROW; BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; UPDATE t1 SET b = a*a*a*a WHERE a > 3; COMMIT; SELECT @@session.tx_isolation, @@session.binlog_format; @@session.tx_isolation READ-COMMITTED @@session.binlog_format ROW BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; SET BINLOG_FORMAT=MIXED; ERROR HY000: Transaction isolation level 'READ-COMMITTED' prevents leaving 'ROW' binlog mode UPDATE t1 SET b = a*a*a*a WHERE a > 3; COMMIT; SELECT @@session.tx_isolation, @@session.binlog_format; @@session.tx_isolation READ-COMMITTED @@session.binlog_format ROW BEGIN; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; SET BINLOG_FORMAT=STATEMENT; ERROR HY000: Transaction isolation level 'READ-COMMITTED' prevents leaving 'ROW' binlog mode UPDATE t1 SET b = a*a*a*a WHERE a > 3; COMMIT; SELECT @@session.tx_isolation, @@session.binlog_format; @@session.tx_isolation READ-COMMITTED @@session.binlog_format ROW